81898076

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{121151}}^1$

素因数の和:121181

約数の個数: 18

約数和(自身を含む): 155195712

約数和(自身を除く): 73297636

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 121151, 242302, 484604, 1574963, 3149926, 6299852, 20474519, 40949038, 81898076]

約数ペア:

[(1, 81898076), (2, 40949038), (4, 20474519), (13, 6299852), (26, 3149926), (52, 1574963), (169, 484604), (338, 242302), (676, 121151)]